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NCERTExemplar solutions in PDF format. Summative Assessment II and Annual Examination of Class XI, 2017. Each text material includes sample questions and with marking scheme. We are providing extra questions along with answers for better practice of these materials. What are different types of wastes?
What are the issues about Solid Waste Management now a days? Less awareness about reducing waste at source. Lack of segregation, poor collection, illegal dumping, open dumping and burning of waste. Limited involvement of private sector and communities.
Generation of the Green House Gases. India and this concern is in terms of both health and environment. This issue arise due to lack of awareness, open dumping, burning of waste, etc. What are the reason for outbreak of recent vector borne diseases? Recent outbreak of vector borne diseases like dengue, chikungunya, malaria and typhoid were due to profuse and unhygienic method of dumping waste in the open. To control, collect, process and dispose solid waste in an economical and consistent way with public health protection. To reduce the quantity of toxic and hazardous chemicals and materials.
To maintain waste recycling programs regularly. To reuse and recover the material from waste. What are the steps towards waste management? Various treatments according to the type of waste.
Management and Handling Rules 2000? Under the Environmental Protection Act, 1986 the Govt. India framed Management and Handling Rules 2000, for issuing the guidelines for collection, handling and disposal of solid wastes, as more than 25Va of municipal solid waste is not collected at all. Municipal waste mainly consists of household waste, construction and demolition debris, sanitation residue etc.
What is Bioreactor Technology in waste degradation? Bioreactor technology is an environmental friendly technique in which microbial cultures are used to treat the waste produced and is converted into compost or manures by using the enzymes present in the microbes. Thus, reducing the amount of waste and also generating useful product from the same. What are the advantages of bioreactor technology? Bioreactor technology reduces time for waste degradation and increased gas generation.
It allows efficient conversion of waste into electricity. What is meant by Waste Hierarchy? The waste hierarchy simply deals with categorization of the waste in 5R’s category i. The aim of the waste hierarchy is to extract the maximum practical benefits from products and to generate the minimum amount of waste. State the objectives of solid waste management. What are the hazards of plastic waste?
Non-judicious disposal of plastics leads to the choking of drains, reducing the soil fertility, killing animals on ingestion and hindering the recharge of groundwater. Thus, conventional plastics, right from their manufacture to their disposal are a major problem to the environment. Rules, 2011, a State Level Advisory committee has to be constituted to oversee the handling, use and disposing of plastic waste. What can one do for an effective SWM? As an individual, a person can generate awareness amongst people for solid waste management.